[PATCH] drm/amdgpu: Fix L1 policy violations (PSP) on Navi21 SRIOV
Rohit Khaire
rohit.khaire at amd.com
Thu Sep 3 21:11:46 UTC 2020
Signed-off-by: Rohit Khaire <rohit.khaire at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 49 ++++++++++++++++--
drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 64 +++++++++++-------------
drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c | 42 ++++++++--------
3 files changed, 95 insertions(+), 60 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index d502e30f67d9..4bafbd453e53 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4808,14 +4808,23 @@ static int gfx_v10_0_init_csb(struct amdgpu_device *adev)
void gfx_v10_0_rlc_stop(struct amdgpu_device *adev)
{
- u32 tmp = RREG32_SOC15(GC, 0, mmRLC_CNTL);
+ u32 tmp;
+ /* For SRIOV, don't touch RLC_G */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
+ tmp = RREG32_SOC15(GC, 0, mmRLC_CNTL);
tmp = REG_SET_FIELD(tmp, RLC_CNTL, RLC_ENABLE_F32, 0);
WREG32_SOC15(GC, 0, mmRLC_CNTL, tmp);
}
static void gfx_v10_0_rlc_reset(struct amdgpu_device *adev)
{
+ /* For SRIOV, don't touch RLC_G */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
WREG32_FIELD15(GC, 0, GRBM_SOFT_RESET, SOFT_RESET_RLC, 1);
udelay(50);
WREG32_FIELD15(GC, 0, GRBM_SOFT_RESET, SOFT_RESET_RLC, 0);
@@ -4846,6 +4855,10 @@ static void gfx_v10_0_rlc_smu_handshake_cntl(struct amdgpu_device *adev,
static void gfx_v10_0_rlc_start(struct amdgpu_device *adev)
{
+ /* For SRIOV, don't touch RLC_G */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
/* TODO: enable rlc & smu handshake until smu
* and gfxoff feature works as expected */
if (!(amdgpu_pp_feature_mask & PP_GFXOFF_MASK))
@@ -4859,6 +4872,10 @@ static void gfx_v10_0_rlc_enable_srm(struct amdgpu_device *adev)
{
uint32_t tmp;
+ /* For SRIOV, don't touch RLC_G */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
/* enable Save Restore Machine */
tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL));
tmp |= RLC_SRM_CNTL__AUTO_INCR_ADDR_MASK;
@@ -4872,6 +4889,10 @@ static int gfx_v10_0_rlc_load_microcode(struct amdgpu_device *adev)
const __le32 *fw_data;
unsigned i, fw_size;
+ /* For SRIOV, don't touch RLC_G */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
if (!adev->gfx.rlc_fw)
return -EINVAL;
@@ -4906,8 +4927,7 @@ static int gfx_v10_0_rlc_resume(struct amdgpu_device *adev)
gfx_v10_0_init_csb(adev);
- if (!amdgpu_sriov_vf(adev)) /* enable RLC SRM */
- gfx_v10_0_rlc_enable_srm(adev);
+ gfx_v10_0_rlc_enable_srm(adev);
} else {
if (amdgpu_sriov_vf(adev)) {
gfx_v10_0_init_csb(adev);
@@ -6990,7 +7010,6 @@ static int gfx_v10_0_hw_fini(void *handle)
if (amdgpu_gfx_disable_kcq(adev))
DRM_ERROR("KCQ disable failed\n");
if (amdgpu_sriov_vf(adev)) {
- gfx_v10_0_cp_gfx_enable(adev, false);
/* Program KIQ position of RLC_CP_SCHEDULERS during destroy */
tmp = RREG32_SOC15(GC, 0, mmRLC_CP_SCHEDULERS);
tmp &= 0xffffff00;
@@ -7272,6 +7291,10 @@ static void gfx_v10_0_update_medium_grain_clock_gating(struct amdgpu_device *ade
{
uint32_t data, def;
+ /* For SRIOV, guest VM should not touch CGCG and PG stuff */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
/* It is disabled by HW by default */
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {
/* 0 - Disable some blocks' MGCG */
@@ -7339,6 +7362,10 @@ static void gfx_v10_0_update_3d_clock_gating(struct amdgpu_device *adev,
{
uint32_t data, def;
+ /* For SRIOV, guest VM should not touch CGCG and PG stuff */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
/* Enable 3D CGCG/CGLS */
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_3D_CGCG)) {
/* write cmd to clear cgcg/cgls ov */
@@ -7381,6 +7408,10 @@ static void gfx_v10_0_update_coarse_grain_clock_gating(struct amdgpu_device *ade
{
uint32_t def, data;
+ /* For SRIOV, guest VM should not touch CGCG and PG stuff */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) {
def = data = RREG32_SOC15(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE);
/* unset CGCG override */
@@ -7422,6 +7453,10 @@ static void gfx_v10_0_update_coarse_grain_clock_gating(struct amdgpu_device *ade
static int gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
bool enable)
{
+ /* For SRIOV, guest VM should not touch CGCG and PG stuff */
+ if (amdgpu_sriov_vf(adev))
+ return;
+
amdgpu_gfx_rlc_enter_safe_mode(adev);
if (enable) {
@@ -7584,6 +7619,12 @@ static void gfx_v10_0_get_clockgating_state(void *handle, u32 *flags)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int data;
+ /* bypass PG and CG on SRIOV VF */
+ if (amdgpu_sriov_vf(adev)) {
+ *flags = 0;
+ return;
+ }
+
/* AMD_CG_SUPPORT_GFX_MGCG */
data = RREG32_KIQ(SOC15_REG_OFFSET(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE));
if (!(data & RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK))
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
index 237a9ff5afa0..44ebb2722c4e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
@@ -152,33 +152,35 @@ static void gfxhub_v2_1_init_system_aperture_regs(struct amdgpu_device *adev)
{
uint64_t value;
- /* Disable AGP. */
- WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
- WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0);
- WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF);
-
- /* Program the system aperture low logical page number. */
- WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
- adev->gmc.vram_start >> 18);
- WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
- adev->gmc.vram_end >> 18);
-
- /* Set default page address. */
- value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start
- + adev->vm_manager.vram_base_offset;
- WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
- (u32)(value >> 12));
- WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
- (u32)(value >> 44));
+ if (!amdgpu_sriov_vf(adev)) {
+ /* Disable AGP. */
+ WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
+ WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0);
+ WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF);
+
+ /* Program the system aperture low logical page number. */
+ WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
+ adev->gmc.vram_start >> 18);
+ WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
+ adev->gmc.vram_end >> 18);
+
+ /* Set default page address. */
+ value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start
+ + adev->vm_manager.vram_base_offset;
+ WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
+ (u32)(value >> 12));
+ WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
+ (u32)(value >> 44));
+ }
/* Program "protection fault". */
WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
- (u32)(adev->dummy_page_addr >> 12));
+ (u32)(adev->dummy_page_addr >> 12));
WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
- (u32)((u64)adev->dummy_page_addr >> 44));
+ (u32)((u64)adev->dummy_page_addr >> 44));
WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
- ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
+ ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
}
@@ -350,18 +352,6 @@ static void gfxhub_v2_1_program_invalidation(struct amdgpu_device *adev)
int gfxhub_v2_1_gart_enable(struct amdgpu_device *adev)
{
- if (amdgpu_sriov_vf(adev)) {
- /*
- * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
- * VF copy registers so vbios post doesn't program them, for
- * SRIOV driver need to program them
- */
- WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE,
- adev->gmc.vram_start >> 24);
- WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_TOP,
- adev->gmc.vram_end >> 24);
- }
-
/* GART Enable. */
gfxhub_v2_1_init_gart_aperture_regs(adev);
gfxhub_v2_1_init_system_aperture_regs(adev);
@@ -394,9 +384,11 @@ void gfxhub_v2_1_gart_disable(struct amdgpu_device *adev)
ENABLE_ADVANCED_DRIVER_MODEL, 0);
WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
- /* Setup L2 cache */
- WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
- WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
+ if (!amdgpu_sriov_vf(adev)) {
+ /* Setup L2 cache */
+ WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
+ WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
+ }
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
index 2d88278c50bf..99f697e63e3c 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
@@ -211,26 +211,26 @@ static void mmhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
adev->gmc.vram_start >> 18);
WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
adev->gmc.vram_end >> 18);
- }
- /* Set default page address. */
- value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start +
- adev->vm_manager.vram_base_offset;
- WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
- (u32)(value >> 12));
- WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
- (u32)(value >> 44));
-
- /* Program "protection fault". */
- WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
- (u32)(adev->dummy_page_addr >> 12));
- WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
- (u32)((u64)adev->dummy_page_addr >> 44));
-
- tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2);
- tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
- ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
- WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
+ /* Set default page address. */
+ value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start +
+ adev->vm_manager.vram_base_offset;
+ WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
+ (u32)(value >> 12));
+ WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
+ (u32)(value >> 44));
+
+ /* Program "protection fault". */
+ WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
+ (u32)(adev->dummy_page_addr >> 12));
+ WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
+ (u32)((u64)adev->dummy_page_addr >> 44));
+
+ tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2);
+ tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
+ ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
+ WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
+ }
}
static void mmhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
@@ -656,8 +656,10 @@ static void mmhub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
{
int data, data1;
- if (amdgpu_sriov_vf(adev))
+ if (amdgpu_sriov_vf(adev)) {
*flags = 0;
+ return;
+ }
switch (adev->asic_type) {
case CHIP_SIENNA_CICHLID:
--
2.17.1
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